a device for ascertaining the depth of water.
Origin of bathometer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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Bathometer, bath-om′et-ėr, n. an instrument for ascertaining depth.
But the most ingenious of all contrivances for finding the depth of the sea is Siemen's Bathometer, a very recent invention.
an instrument for measuring the depth of water
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
An instrument that is used to measure water depth without the use of a sounding line. The bathometer does not require a line to extend to the bottom because it measures the difference in the gravitational effect of the water surface and of solid ground.
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